"If we do not practice now while we have an incarnation most suitable to the attainment of enlightenment, what hope do we have for progress in the future? Many types of sentient beings, such as dogs and insects that live near a temple, meet with the teachings but, not having an appropriate physical or mental basis, they are unable to comprehend them or put them to use."
January 1, 1970
https://en.wikiquote.org/wiki/Incarnation